Oil-burner.



c. E. BROWN.

OIL BURNER, APPucATmH FILED MAR. 24. 19:5.

Patented May 23, 1916.

Witnesses A'tiorr aeys Nnmus PUFFS m. umonmsu "an". M

cant n. nnown, or ooLuMBus, OHIO.

OILBURNER.

Specification of LettersPatent.

Patented May I Application filed March '24, 1915. Serial no. 16,712.

type inwhich the upper arm of a U-shaped oil supply pipe is heated from a combustion orifice in the lower arm of the pipe, thereby to convert the oil in the upper arm of the pipe into gas which burns at the combustion orifice in the lower arm of the pipe. In order. that the oil or other liquid fuel may be vap'oriied in the upper arm of the pipe, it is necessary that the upper arm be heated to a comparatively high degree. When the burner is started in operation, the upper arm of -th'e pipe, of course, is not heated. It has been proposed hitherto to mount the U- shaped pipe slidably and to arrange adjacent thrrlower arm of the pipe a tray which is adapted to receive oil or'fuel from the lower arm of the pipe, the pipe being slid endwise so that the combustion orifice may discharge a quantity of oil or fuel onto the tray. The pipe is then returned to its original position, and the oil or fuel in the tray is lighted, thus to heat the upper arm of the pipe and to vaporize the fuel therein at the starting of the burner.

The construction above described presupposes that the arched or U-shaped pipe is free to slide in the direction of itslen'gth and one of the disadvantages attendant upon the above mentioned operation is that if the pipe is to slide longitudinally, sufficient room 40 must be 'pro'vided so that the sliding operation in question may take place.

The present invention contemplates that the arched or U-shaped pipe shall be fixedly mounted against longitudinal movement, a

novel means being provided whereby at the starting of the burner, the fuel in the U- shaped pipe may be carried onto the. tray, to be lighted for the purpose of heating the upper or vaporizing arm of the pipe.

The invention aims to improve structurally and in detail, as well as to present broadly, a means whereby the step last above mitntioned may be carried out.

With the above and other objects in view 5 which will appear as the description pr0- needs, the invention resides in the comblnation and arrangement of parts and mthe de-' tails of construction hereinafteri described and claimed, it being understood that' changes in the precise embodiment of the in vention herein disclosed canbe m'adewithin the scope of what is claimed,withoutde parting from the spirit of the 1nvention.

In the accompanying drawings: Figure 1 shows the invention in sideelevation, parts" being broken away; Fig. 2 isa top plan whereby the supply and vaporizlng pipe has been omitted; Fig. 3 is a c'ro'sss'ection taken approximately on the lined- 3 of Fig.1; 1 1g. at is an elevation of the supporting bracket.

The structure forming the subject, matter of this application preferably is fashioned from metal throughout saving as hereinafter specifically modified, and compri es a box like casing 1 including axlid 2 which" maybe removable. At its ends,"the lid 2 --i s'provided with upstanding pyramidal com'bus tion chambers 3, open at their lower endsso as to communicate with the'interior of the casing l, the smaller, upper ends of the combustion chambers 3 terminating in outlets 4..

The construction, therefore, issuch that air may draw upwardly through the casmgll and through the outlets i of the combustion chambers. The combustion chambers 3 are provided with openings diam} below the openings 5, in the adjacent ori nerracesor; the combustion chambers, {elongated slots'fil are formed. Between the combustion cl an'o v bore 3 and along its edges the "lid "2 is equipped with upstanding j flanges 17 -definingv a tray which may be filled, with a la'ye'r'jof';

- ashes, with asbestos, or with any othersu'it-" able absorbent material, denoted bythe numeral 8. I The invention contemplates theju'se of a U-shapedor arched pipe 9 comprising an.

upper arm 10.and a lower arm 11 The upper arm 10 of the pipe 9 lies above jtheout: lets 4 of the combustion chambers'3, the lower arm 11 passing through the openings '5 in the combustion chambers, thea-rms of the pipe 9 being united by a bend 12 and the extremity of the lower arm 11 being closed by a cap 14: or in any other suitable manner. The lower arm 11 of the pipe 9 is provided with combustion orifices 16 lying within the contour of the chambers 3 and preferably disposed coaxiall'y with respect to the openings or'outlets l. The pipe 9 is supported by means of a bracket 15 preferably bustion chambers 3.

of arched construction, the bracket being secured to the lid 2 and supporting the upper arm 10 of the pipe 9. Flame spreaders 17 are attached to the upper arm 10 of the pipe 9 and lie above the outlets 4 of the com- At this point it may be noted that heretofore, in order to apply a priming charge to the tray, the pipe 9 has been slid longitudinally, thereby to dispose one of the combustion orifices 16 outside of the corresponding combustion chamber 3, to the end that oil 01' fuel may run out onto the tray, the pipe 9 being restored to its original position andthe oil in the tray being ignited beneath the upper arm 10 ofthe pipe at the starting of the burner. This operation is disadvantageous. If the pipe 9 is to he slid in the direction of the arrow A in order to dispose one of the combustion orifices 16 outside of the corresponding chamber 3, the bend 12 must extendto the left a considerable distance beyond the showing in Fig. 1. If the pipe 9 is to he slid in thedirection of the arrow B in carrying out the operation above mentioned or, indeed, if the pipe is to be slid either in the direction of the arrow B are in the direction of the arrow A, a space must exist at each end of the casing 1 to permit such a sliding movement. To render the burner compact and to render it unnecessary to provide a space for the sliding movement of the pipe 9 is one of the objects of this invention.

In order that fuel may be discharged into the tray without shifting the pipe 9 endwise, a pair of discharge members are located partly within the combustion chambers 3 and lie beneath the orifices 16. The discharge members 18 comprise side walls 19 and a rear wall 20, the forward or inner ends of the discharge members being open. The discharge members slant downwardly toward each other and pass through the slots 6 in the walls of the chambers 3, the inner or adjacent ends of the discharge members being secured to the lid 2 within the contour of the tray by meansof attaching elemcnts21. The outer ends of the discharge members 18 may bear against the under edge of the lower arm- 11 of the pipe. It will now be understood. that when it is desired to deposit a priming charge in the tray, a quantity of oil or fuel is permitted to run out of the orifices 16, the oil [lowing onto the discharge members 18 and passing therefron-i onto the absorbent material in the tray. ()wing to the fact that two discharge members 18 are provided, the fuel is distributed fairly and evenly over the tray. It is to be observed, further, referring particularly to Fig. 2 that the discharge members 18 extend beyond the pe riphery of the outlets 4 and therefore serve as baflles tending to distribute evenly around the combustion chambers, the air which passes upwardly therethrough. Another advantage in having the U-shaped pipe stationary is that permanent plumbing maybe used on the outside of the stove, learing from the burner to an oil tank, whereas, it the U-shaped pipe is slidable, a flexible tubing must be resorted to.

Having thus described theinvention, what is claimed is In a device of the class described, a tray; a tapered combustion chamber carried by the tray, the chamber having an outlet in its top and being provided upon the side adjacent the center of the tray with a slot located close to the bottom of the tray; an arched pipe extended longitudinally of the tray and embodying an upper arm located above the outlet and a lower arm passing through the combustion chamber above the slot, the lower arm having a combustion orifice disposed within the chamber; and a pan located partly in the chamber and extended outwardly through the slot, the pan being secured to the tray exteriorly of the chamber and lying below the orifice in the lower arm of the pipe, the pan being inclined l. mgitudinally of the tray from the central portion of the tray toward the outer end thereof for the double purpose of defleeting into the tray fuel discharged into the pan through the orifice and of deflecting away from the slot, air rising through the chamber, the pan being of a greater area than the outlet.

In testimony that I claim the foregoing as my own, I have hereto aliixed my signature in the presence of two witnesses.

CARL E. BROWN.

' Witnesscs-z Il. JKCooR, L. E. LAIHAM. 

